How far is Porter Heights, TX from Dallas, TX?
The driving distance from Porter Heights, TX to Dallas, TX is about 217.4 miles (349.9 km), with a travel time of about 03h 23m by car.
- The straight-line flight distance is about 201.8 miles (324.7 km).
- For a round trip, plan for roughly 06h 47m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 23m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Leon County, Texas
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Porter Heights and Dallas.
Turn-by-Turn Driving Directions
Step-by-step road directions between Porter Heights and Dallas.
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1
Start on the route
2520 ft · 2 min
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2
At the end of the road, turn right onto Porter Lane
1.2 km · 2 min · Porter Lane
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3
Turn left onto FM 1314
4.8 mi · 8 min · FM 1314
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4
Continue on Conroe Porter Road
6.7 mi · 12 min · Conroe Porter Road
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5
Turn left onto South Loop 336 East
2.1 mi · 3 min · South Loop 336 East
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6
Turn right onto Interstate 45 North Frontage Road
3083 ft · 1 min · Interstate 45 North Frontage Road
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7
Take the ramp straight toward I 45 North
1100 ft · 27 sec
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8
Merge slight left
199.8 mi · 3 hr 25 min
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9
Take the exit slight right toward Main Street West, Elm Street
1302 ft · 32 sec
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10
Keep slight right to continue on Elm Street
577 ft · 14 sec
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11
Turn straight onto Elm Street
1.4 km · 2 min · Elm Street
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12
Turn right onto North Lamar Street
1233 ft · 31 sec · North Lamar Street
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13
Arrive at your destination
0 m · 1 sec · North Lamar Street
Car Route Details
A richer read on the saved driving route between Porter Heights and Dallas.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 45 North
Merge slight left
200 mi · 03h 25m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Partly Sunny leaving Porter Heights and Partly Sunny near Dallas.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Porter Heights to Dallas?
The road trip is about 217.4 miles (349.9 km) and usually takes 03h 23m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Buffalo is a useful midpoint, sitting about 108.6 miles from Porter Heights and 108.9 miles from Dallas.
How much longer is the road route than the straight-line distance?
The direct path is about 201.8 miles (324.7 km), while the road route adds roughly 15.6 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:12 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $28.98 one way or $57.97 round trip. Estimated CO2 is about 68.2 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Porter Heights and Partly Sunny near Dallas.
Stop Ideas Near Buffalo
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Buffalo.
Bryan, TX
Waco, TX
Flight Path Map
This map shows the direct air route between Porter Heights and Dallas. Straight-line distance: 201.75 mi (324.69 km).
#1 Porter Heights
Census designated place
| Population | 1,653 |
| Coordinates | 30.1518800, -95.3218800 |
| Altitude | 38 |
| Country | United States |
#2 Dallas
The ninth most populous city in the United States and the center of the Dallas-Fort Worth metropolitan area.
| Population | 1,343,266 |
| Coordinates | 32.7830600, -96.8066700 |
| Altitude | 128 |
| Country | United States |
End: North Lamar Street (-96.806574, 32.783135)
Estimated Travel Time
Distance: 350 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 14m |
| 40 mph (64.37 km/h) | 05h 26m |
| 50 mph (80.47 km/h) | 04h 20m |
| 60 mph (96.56 km/h) | 03h 37m |
| 70 mph (112.65 km/h) | 03h 06m |
| 80 mph (129 km/h) | 02h 42m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $28.98 | $57.97 |
| Mid-grade | $4.25 | $32.61 | $65.23 |
| Premium | $4.59 | $35.21 | $70.43 |
| Diesel | $3.99 | $30.63 | $61.25 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Texas · May 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.